E. coli-derived recombinant human protein (amino acids H18-V1135) was used as the immunogen for the POLR1B antibody.
DNA-directed RNA polymerase I subunit RPA2 is an enzyme that in humans is encoded by the POLR1B gene. Eukaryotic RNA polymerase I (pol I) is responsible for the transcription of ribosomal RNA (rRNA) genes and production of rRNA, the primary component of
